What does TGV stand for?

What does TGV stand for?

• A. Transposition of the great vessels
• B. Tricuspid valve stenosis
• C. Truncus arteriosus
• D. Total anomalous pulmonary venous return

Answer: (D)

TGV in this context points to a congenital heart defect where the pulmonary veins don’t return blood to the left atrium. Instead, all pulmonary veins drain abnormally into the right atrium or systemic venous circulation, so oxygenated and deoxygenated blood mix and can cause cyanosis. The full name most often used is Total anomalous pulmonary venous return (TAPVR). Among the options, this is the one that matches the idea of abnormal pulmonary venous connection, which is what TGV is signaling here. The other choices describe different conditions—transposition of the great vessels involves the great arteries, tricuspid valve stenosis is a valvular problem, and truncus arteriosus is a single arterial vessel—none of which fit the concept of anomalous pulmonary venous drainage.

TGV in this context points to a congenital heart defect where the pulmonary veins don’t return blood to the left atrium. Instead, all pulmonary veins drain abnormally into the right atrium or systemic venous circulation, so oxygenated and deoxygenated blood mix and can cause cyanosis. The full name most often used is Total anomalous pulmonary venous return (TAPVR). Among the options, this is the one that matches the idea of abnormal pulmonary venous connection, which is what TGV is signaling here. The other choices describe different conditions—transposition of the great vessels involves the great arteries, tricuspid valve stenosis is a valvular problem, and truncus arteriosus is a single arterial vessel—none of which fit the concept of anomalous pulmonary venous drainage.